When these were run through the Surface 2's Excel, the addition came to $9,000.

When they're run through many heads, they might come to $9,500.

Naturally, those on the Apple side of life will be reminded of Frank Shaw, Microsoft's corporate vice president of communications.

When Apple released new iWork and iLife, Shaw offered of the new iPad: "It's much harder to get work done on a device that lacks precision input and a desktop for true side-by-side multitasking.

Yet here's an ad that seems to show that precision output on the Surface 2 may not be too precise.

Moreover, Microsoft did just launch an ad that implies very heavily that, unlike the iPad, the Surface 2 is for "real work."

Perhaps vacation budgets are too frivolous.

Everyone makes mistakes. And the last time I met an art director who could add up (or spell, for that matter) was around 1998. But after the art directors, there are account executives and clients who must surely have checked this math.

I have contacted Microsoft to ask whether this ad truly adds up and will update, should I hear.

It does seem a touch careless when touting your business superiority to feature apparently erroneous calculations, especially when they could be done with a pen and a piece of paper.